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Garden Room Bases


The design and purchase of your garden room base is very important to protect your investment. recommend that you install a solid base to the correct size required in our specification sheets, Garden rooms are heavy and need a firm base for correct installation. Cutting corners on the base will only will lead to problems  in years to come! is happy to advise with your base and have listed the three main base types below. We are happy to arrange delivery and installation of option 1 or 2 or you can arrange your own builder to prepare your own concrete base.

3 Different Base Options :

1) Timber Deck Base : Installed above the ground with ground screws

2) Steel raft base: Installed with small pad foundations.

3)Traditional Concrete Base: Constructed by a local builder (or DIY)

"No Digging" Ground screws and Timber Deck

timber deck base

Save time and money with ground screws.

We install ground screws for mounting your deck base. The work is performed by our authorised installers across the UK. Before installing the screws we pre-drill a hole in the ground to ensure secure and accurate installation. Small stones move out of the way during drilling and stones of up to 30 cm are broken up. If we hit bedrock we drill and put in spikes instead. Ground screws can be installed anywhere you normally dig to concrete in an upright post or site a pre-fabricated concrete support.

Ground screws for multiple applications

Our method and screws are also approved for large installations. We can put in screws where a fence, deck, smaller building or carport is to be built, but we can also install them on larger constructions such as noise barriers or single-storey garden buildings. We have over 10 different models of screws depending on the foundation and what is to be installed. 

No damage to grass, tarmac or paving

When we put in ground screws, you avoid having your lawn or paving dug up to cast or put in a concrete foundation. If, for example, you have cobblestones, we just lift out the stone where the screw is to sit and drill there. We can even put a screw straight through an existing wooden deck or through tarmac, pre-boring with an 80 mm drill. This naturally saves a great deal of time and money. Not having to cast footings also means that installation work can begin as soon as the screws are in place. We can even put in ground screws in winter.

composite garden room on ground screws

Steel Base Raft: Installed with concrete pads



It's quicker than a traditional base: The Durabase arrives in kit form, complete with flooring and underfloor insulation ready for a quick and easy assembly. The average base can be installed within a day!

It's easier: Uneven or sloping sites and difficult site access are easily overcome with Durabase.

It's cleaner: There’s no need for large scale excavations, which minimises the amount of soil to dispose of and the disruption caused to the site.

It's cost effective: No need for expensive relocating of manholes or drains.

Straight forward installation: Durabase is suitable for either professional or DIY installation. Durabase can be assembled with just a little DIY experience. No specialist tradesman or bricklayers are required. 

U-Value: U-values of 0.22W/m2k and 0.18W/m2k.

Guaranteed:  Durabase and DurabasePlus are covered by our 25 year guarantee.


Traditional Base Foundation 

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Traditional bases require digging out for foundations; this involves the need to remove the dig from the garden. Traditional bases take longer to construct and make more mess! Traditional concrete bases need good access to the building area to remove the dig and bring in the wet concrete. 

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